3
3 EMLAB Fundamental limit of BW The bandwidth of an antenna (which can be enclosed in a sphere of radius r) can be improved only if the antenna utilizes efficiently, with its geometrical configuration, the available volume within the sphere

4
4 EMLAB

5
5 9.2 Bi-conical antenna Dominant TEM mode

6
6 EMLAB Electric and magnetic fields, and associated voltages and currents, for a bi-conical antenna.